Ventilating window lock



C. E. STELTZ.

VENTILATING WINDOW LOCK.

APPLICATION FILED APR. 26. I92].

Patented Jan. W, 11922.,

g UMM' Clarence E ET'EIT'Z clip can be dropped over the head of the locking key 8' and will thus prevent the samefrom being turned by a wire or other means introduced between the windows from the outside. Hence, it will be seen that a very simple and inexpensive device is produced, which can be attached to the rails of a window readily, and which can be dismantled without the aid of a screw driver when it is desired to remove said device.

It is understood that I may vary the structural features of the safety lock without departing from the spirit of the invention.

I claim:

1. A ventilating device for windows comprising a bracket attachable to the rail of a Window, a strap extending therefrom having notched edges, a bowed bracket adapted to be secured to the rail of a companion window, having a slot therein a locking saddle having a slot engageable with selective pairs of the strap notches, the locking saddle being provided with a transversely disposed slot in alignment with the bowed bracket slot, and a revoluble key extending through the slots for locking the bowed bracket and saddle together.

2. A ventilating device for windows comprising a bracket attachable to the rail of a window, a strap in key connection with the bracket, the strap having its edges provided with a series of spaced pairs of notches, a bowed bracket having a slot therein secured to the companion window rail, a locking saddle having a slot for adjustable locking engagement with the notches of the strap, the locking saddle being provided with a second slot arranged transversely with relation to the first mentioned slot, a revoluble key for engagement with the last mentioned saddle slot and bowed bracket slot, whereby the said parts are locked together and a safety clip in slidable engagement with the strap for locking engagement with the key.

In testimony that I claim the foregoing I have hereunto set my hand at Milwaukee, in the county of Milwaukee and State of \Visconsin.

CLARENCE E. SlEL'lZ. 

